package com.example.demo.config;

import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.HandlerInterceptor;


public class LoginHandlerInter implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        Object loginUser = request.getSession().getAttribute("loginUser");
        if (loginUser == null){
            request.setAttribute("msg","请先登录");
            request.getRequestDispatcher("/").forward(request, response);
            return false;
        }else {
            return true;
        }
    }

}
